<template>
  <h3>我是app组件</h3>
  <h2>当前求和为:{{ sum }}</h2>
  <button @click="sum++">点我+1</button>
  <hr>
  <h2>当前点击时鼠标的坐标为:x:{{point.x}},y:{{point.y}}</h2>
</template>

<script>
import { ref} from "vue";
import usePoint from '../hooks/UsePoint'
export default {
  name: 'Demo',
  setup() {
    //数据
    let sum = ref(0)
    let point = usePoint()
    return {
      sum,
      point
    }
  },
}
</script>
<style>
</style>
